Problem with Notifications

[mcgiak]

Hello

I have installed domoticz 4.97 on raspberry pi3b+.

I use domoticz for monitoring 4 temperature sensors.

I have in "temperature" task 4 sensors.

In Settings - Email I have submitted all forms with from mail, to mail, etc. Test is OK.

After i have set in temperature sensor, in notifications, a model like this:

Model: Temperature
When: Less
Value: 50 °C
Priority: High
Message: warning
and in active system i have activate "email".

When the temperature go to 49 - 48 - etc, no email received.

Where i mistake?

Sorry for english... i hope in a answer
thank you